Hi, when I first started using my edge 810 I changed the amounts if HR training zones from 5 to 3. My device is only compatible with 5 zones and the + and - buttons I used to change the amount of zones originally are no where to be found. They are just simply not there at the bottom of list if zones as they once were :(. Has anyone else suffered this? Is it related to the website "upgrade" any help / advice great fully received.
Thanks